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1 • Zenith Stromberg 175CD carburettor and air filter To engine no. 7P25000 (May 1975)
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2 • Zenith Stromberg 175CD internal carburettor To engine no. 7P25000 (May 1975)
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3 • Fuel injectors, fuel pressure regulator and pressure sensor - from May 1975 to December 1979 Series II from engine no. 7P25001, Series III to engine no. 7P42299. Cars fitted with with D-Jetronic system
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4 • Fuel injectors, fuel pressure regulator and pressure sensor - from December 1979 to September 1983 Series III from engine no. 7P42300 to 7P48370. Cars fitted with H.E. engines and P-Jetronic system
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5 • Fuel injectors, fuel pressure regulator and pressure sensor - from September 1983 to August 1985 Series III from engine no. 7P48371 to 7P53500. Cars fitted with H.E. engines and P-Jetronic system with CMOS Chip technology
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6 • Fuel injectors, fuel pressure regulator and pressure sensor - from August 1985 Series III from engine no. 7P53501. Cars fitted with H.E. engines and P-Jetronic system with CMOS Chip technology
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7 • Air filter, throttle body, temperature sensors From May 1975 (from engine no. 7P25001)
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8 • Auxiliary air valve and throttle potentiometer switch From May 1975 (from engine no. 7P25001)
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9 • Control unit and lambda sensor From May 1975 (from engine no. 7P25001)